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Datapipe had the most reliable company website during July, responding successfully to all but one of Netcraft's requests. This continues their regular appearance in the top 10, making 11 of the past 12 months and every month of 2015 so far. Datapipe offers a 100% Uptime Guarantee, and fulfilled this promise on its own site, with 100% uptime recorded over the past 9 years.

With two failed requests each, GoDaddy, Qube, and EveryCity contend for second place. The ranking between them is decided by the average connection time, putting GoDaddy into second place and Qube into third. GoDaddy recently produced CODE, a documentary about gender bias in the tech industry; the film was selected for the Tribeca Film Festival. Qube is based in London and offers managed private cloud hosting services from datacentres in London, New York and Zurich.

Linux is once again the most common choice of Operating System; 8 out of the top 10 companies used the OS to power their website. The two remaining sites were powered by SmartOS and FreeBSD. This is the first time since December 2014 that no sites powered by Windows have appeared in the top 10.

Netcraft measures and makes available the response times of around forty leading hosting providers' sites. The performance measurements are made at fifteen minute intervals from separate points around the internet, and averages are calculated over the immediately preceding 24 hour period.

From a customer's point of view, the percentage of failed requests is more pertinent than outages on hosting companies' own sites, as this gives a pointer to reliability of routing, and this is why we choose to rank our table by fewest failed requests, rather than shortest periods of outage. In the event the number of failed requests are equal then sites are ranked by average connection times.

Information on the measurement process and current measurements is available.